Harbor Freight Tools 32871 User Manual

3/4" HEAVY DUTY AIR IMPACT

®

WRENCH

ASSEMBL Y and OPERA TING INSTRUCTIONS

3491 Mission Oaks Blvd. / Camarillo, CA 93011

Copyright © 1997 by Harbor Freight Tools. All rights reserved.

No portion of this manual or any artwork contained herein may be reproduced in any

shape or form without the express written consent of Harbor Freight Tools.

For technical questions and replacement parts, please call 1-800-444-3353.

For technical questions, please call 1-800-444-3353.

Page 1SKU 32871

SPECIFICATIONS

Free Speed 4500 RPM
Air Inlet ¼” NPT
PSI 90
CFM 7
Torque *500 maximum ft-lbs.

SAVE THIS MANUAL

You will need the manual for the safety warnings and cautions, assembly instructions, operating
procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice
with this manual. Write the invoice number on the inside of the front cover . Keep both this manual
and your invoice in a safe, dry place for future reference.

SAFETY WARNING & CAUTIONS

WARNING: When using pneumatic equipment, basic safety precautions should always be

followed to reduce the risk of personal injury and hazards due to over pressurization.

READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!

1. KEEP WORK AREA CLEAN. Cluttered areas invite injuries.

2. OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit
locations. Don’t expose to rain. Keep work area well lit. Do not use electrically powered air
compressors in the presence of flammable gases or liquids.

3. KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let them
handle machines, tools, or hoses.

4. STORE IDLE EQUIPMENT. When not in use, tools must be locked up in a dry location to
inhibit rust. Always lock up tools and keep out of reach of children.

5. DO NOT FORCE THE TOOL. It will do the job better and more safely at the rate for which
it was intended. Do not use inappropriate attachments in an attempt to exceed the tool’s
capacities.

6. USE THE RIGHT TOOL FOR THE JOB. Do not attempt to force a small tool or
attachment to do the work of a larger industrial tool. Do not use a tool for a purpose for
which it was not intended.

7. DRESS PROPERLY. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Non-skid footwear is recommended. Wear restrictive hair covering to contain
long hair.

8. USE EYE AND EAR PROTECTION. Always wear ANSI approved chemical splash goggles
when working with chemicals. Always wear ANSI approved impact safety goggles at other
times.

For technical questions, please call 1-800-444-3353.

Page 2SKU 32871

REV 04/06

Wear a full face shield if you are producing metal filings or wood chips. W ear an ANSI
approved dust mask or respirator when working around metal, wood, and chemical dusts
and mists.

9. DO NOT ABUSE THE POWER CORD. Do not yank compressor’s cord to disconnect it

from the receptacle. Do not carry tools by the cord.

10. DO NOT OVERREACH. Keep proper footing and balance at all times. Do not reach over or

across running machines.

11. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer

performance. Follow instructions for lubricating and changing accessories. Inspect
compressor’s cord periodically and, if damaged, have them repaired by an authorized
technician. Inspect all hoses for leaks prior to use. The handles must be kept clean, dry, and
free from oil and grease at all times.

12. REMOVE ADJUSTING KEYS AND WRENCHES. Make it a habit to check that keys and

adjusting wrenches are removed from the tool or machine work surface before plugging it
in.

13. AVOID UNINTENTIONAL STARTING. Do not carry any tool with your finger on the trigger,

whether it is connected to the compressor or not.

14. ST AY ALERT. Watch what you are doing, use common sense. Do not operate any tool

when you are tired.

15. CHECK DAMAGED PARTS. Before using any tool, any part that appears damaged should

be carefully checked to determine that it will operate properly and perform its intended
function. Check for alignment and binding of moving parts; any broken parts or mounting
fixtures; and any other condition that may affect proper operation. Any part that is damaged
should be properly repaired or replaced by a qualified technician. Do not use the tool if any
switch does not turn on and off properly.

16. REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use accessories
intended for use with this tool. Approved accessories are available from Harbor Freight
Tools.

17. DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS.

Read warning labels on prescriptions to determine if your judgment or reflexes are impaired
while taking drugs. If there is any doubt, do not operate the tool.

18. DRAIN COMPRESSOR EVERY DAY. Do not allow moisture to build up inside the

compressor. Do not allow compressor to sit pressurized for longer than one hour.

19. MAKE SURE ALL EQUIPMENT IS RATED TO THE APPROPRIATE CAPACITY. Make

sure that regulator is set at least 10 PSI lower than the lowest rated piece of equipment you
are using.

For technical questions, please call 1-800-444-3353.

Page 3SKU 32871

UNPACKING

Your Impact Wrench comes completely assembled.
If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover

of this manual.

GENERAL

This Impact Wrench develops a maximum of 535 ft/lbs. of torque. The amount of torque can be
increased or decreased using the AIR REGULATOR (#46). When the Air Regulator is
completely screwed in it is at it’s lowest setting. Air pressure increases as you loosen the Air
Regulator.

For technical questions, please call 1-800-444-3353.

Page 4SKU 32871